Carriage-jack



(No Model.) 2 Sheets-Sheet 2.

D. TRUE.

CARRIAGE JACK.

' No. 323,237. Patented July 28,1885.

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lJ'NrTsn STATES Trice.

DAVID TRUE, OF SALISBURY, MASSACHUSETTS.

CARRIAGE-JACK.

SPECIFICATION forming part of Letters Patent No, 323,237, dated July 28, 1885.

Application filed February 2, 1885.

To all whom it may concern;

Be it known that I, DAVID TRUE, of Salisbury, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Carriage-Jacks, of which the following is a specification.

This is an improvement upon the liftingjaclr for which Letters Patent of the United States numbered 308,648 were granted to me December 2, 1884, and my present invention has for its objects, first, to facilitate the use of the device in connection with carriages and wagons whose axles are placed at widely-different heights from the ground by adding to the adjustability of the jack, and, second, to prevent the device from marring the finish of the axles of nice vehicles.

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is a side elevation of the lifting-jack shown in the said Letters Patent with my improvements applied thereto. Fig. 2 is a view in perspective of the detached parts, to which my improvement immediately applies. Fig. 3 is an elevation of a portion of the rear side of one of the parts shown in Fig. 2. Fig. 4 is a vertical section on line m, Fig. 3. Fig. 5 is a horizontal section on line y, Fig. 2. Figs. 6 and 7 are, respectively, perspective and horizontal sectional views ofa modification.

The standard A, pedestal B, lifting-lever L, socket I, pawl J, and spring K are constructed substantially as shown in the Letters Patent aforesaid. Thelifting-bar E, provided with a foot or book, E, is adapted to slide vertically against the post A by means of the guides F and G, the latter extending, preferably, over the ct ge or back of the flange E of the lifting-bar E, or into grooves in said lifting-bar, as shown in said patent, as desired. The upper end of the lifting-bar E is provided with parallel lips 0, each of which has two ormore openings, 0, opposite similar openings in the other lip. These openings are of corresponding but irregular shape, and preferably of the shape shown. The lower end of the rack-bar H is of suitable thickness to fit easily between the lips O, and is provided with a perforation, H, of similar shape with the openings 0.

D is a bolt shaped at its end D to fit into the openings 0 and H, headed at D, and

(No model.)

provided with aspring, d, of metal or rubber, as preferred.

The carriage-jack may be adjusted to axles of different heights by inserting the lower end of the rack-bar between thelips 0, so that the perforation H will be coincident with any one of the sets of openings 0 desired. Upon the outer side of one of the lips 0, next each of the openings 0 therein, is a pair of protuberances, e.

To secure the rack-bar H and lifting-bar E together at either of the points shown, the bolt D is pressed through one set of the openings 0' and the perforation H coincident therewith, and is then turned so that the projection or irregularity at its end slips over one of the protuberances e and drops in between them,

as shown in Fig. 3, being held therein and securely locked by the pressure of the spring d, which is compressed between the head D and one of the lips O, as shown in Fig. 4. To remove the bolt in order to adjust the height of the lifting-bar, the operation is reversed. The exact adjustment is of course effected by the ratchet and pawl at the upper end of the bar H in the same manner as described in the Letters Patent upon which this is an improvement.

At the lower end of the lifting-bar E is a pair of parallel lips, K, preferably provided with teeth K. Driven into the slot or space between said lips is a bar or piece, 1?, of rubber or other elastic or yielding substance held in position by bending the teeth K inwardly and gripping it, as shown in Fig. 5. In Fig. 2 the rubber is represented as broken out, and the teeth opposite the blOkGll-OLUJ portion are not bent in. Then the jack is laid against an. axle for lifting the same, the rubber piece P is the only part which comes in contact with the side of the axle, and hence the finish of the latter is not marred.

In the modification shown in Figs. 6 and 7 the rack-bar H is forked, and slips over the lifting-bar, as shown, the principle being the Same as in the foregoing figures.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a carriage-jack, the combination, with the lifting-bar E, of the strip or bar P, of rub her or other comparatively soft substance, secured to the side of said bar longitudinally and vertically, substantially as described, whereby the side of the axle will come in contact with said rubber or other soft substance when the jack is used. v

2. Ina carriage-jack, the lifting-bar E, provided with the lips K K, in combination with the piece of rubber or other comparatively soft substance, P, set in the slot or space between said lips, substantially as and for the purpose described. a

3. In a carriage-jack, the lifting-bar E, provided with the lips K K, having the teeth K, in combination with the piece of rubber or other comparatively soft substance, 1?, set in the slot or space between said lips, substantially as and for the purpose set forth.

4. In a carriage-jack, the lifting-bar E, provided with the lips K K, having the teeth K, bent inwardly, as described, in combination with the piece of rubber or other comparatively soft substance, P, set in the slot or space between said lips, substantially as and for the purpose described.

5. In acarriage-jack, the combination of the lifting-bar E, provided with irregular perfo rations O, the rack-bar H, having similar irregular perforations H, and the bolt D, whose end is formed in shape to correspond with said perforations, substantially as and for the purpose set forth.

6. The lifting-bar E, provided with the lips 0, having irregular corresponding perforations 0, as described, one of said lips being provided with the protuberances e, in combination with the bolt D, of shape to fit into said perforations, substantially as and for the purpose described' 7. The combination of the liftingbar E, provided with the lips 0, having irregular corresponding perforations, O, as described, one of said lips being provided with the protuberances e, and the bolt D, of shape to fit into said perforations, and provided with the head D and spring d, substantially as and for the purpose set forth.

8. The lifting-bar E, provided near its lower end with a side buffer of rubber or other soft material, and near its upper end with means whereby it is rendered adjustable as to height on the rack-bar, substantially as and for the purpose described.

DAVID TRUE.

WVitnesses:

HENRY NV. WILLmMs, J. M. HARTNETT. 

